Finding the Fourth Proportional to 10,061.71, 15,081.61 and 4,211.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,061.71 : 15,081.61 = 4,211.48 : x
2. Step 2: Convert to fraction form
   10,061.71/15,081.61 = 4,211.48/x
3. Step 3: Cross multiply
   10,061.71x = 15,081.61 × 4,211.48
4. Step 4: Simplify right side
   10,061.71x = 63,515,898.88
5. Step 5: Solve for x
   x = 63,515,898.88/10,061.71
6. Step 6: Final answer
   x = 6,312.63